Waitakere Police have charged a 14 year-old boy and a 15 year-old girl, following a stabbing in West Auckland late on Friday night.

The girl has been charged with causing grievous bodily harm with intent to rob and will be the subject of a youth court hearing later today.

The victim is alleged to have been stabbed in the chest as he sat in a car with the girl, who he’d met on a social media dating app.

The victim is believed to have collected a young woman from an address in Massey on Friday night. He was later seen collapsed in the middle of a roundabout at the corner of Triangle Rd and Huruhuru Rd clutching his chest, where people tried to help him.

A police spokesman said emergency services arrived on the scene at 11.50pm and the man was taken to Waitakere Hospital by ambulance with a deep cut just below his collar bone and is thought to have suffered a collapsed lung. 

The victim remains in hospital in a stable condition.

A 14 year-old boy has also been charged with being a party to causing grievous bodily harm with intent to rob.

He is expected to appear in the Waitakere District Court, as a youth hearing, tomorrow.

The pair are also additionally charged with aggravated robbery, this was a separate incident that occurred in the early hours of Friday morning, at a petrol station in Massey.

A man who lives near the roundabout said he was woken by a knock on his door by a police officer about 1am but by the time he got up, the officer had walked away.

From his window, he could see a number of police cars with their lights flashing and a cordon at the roundabout.

Another woman who lived near the scene also woke to police cars but didn't know what happened.

"That's scary. Nothing like that has happened near here before."